• The soil moisture variable stored from the HadCM3 simulations IS NOT TOTAL SOIL MOISTURE. Instead, it is the amount of soil moisture in the vegetation root zone. Because the vegetation changes between the three simulations, and also changes during the course of the all simulation, the depth of the root zone changes. Therefore, the soil moisture within the root zone can change dramatically between simulations and also during the all simulation even if the total soil moisture has not changed.
• As a result, this particular "soil moisture in the vegetation root zone" data from the HadCM3 simulations should probably not be used.